The accident occurred shortly after 3:30 a.m. a few blocks north of the Indiana Statehouse. Police spokeswoman Sgt. Linda Jackson says the impact caused the ambulance to roll onto its side and slide into an unoccupied parked vehicle, trapping both medics inside.

No one else was in the ambulance, which was not on an emergency run at the time. Officials say it had the right of way.

The other vehicle's driver was taken to the hospital for a blood test.